Comparison

OpenSprinkler vs TM+ Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OpenSprinkler

Control your OpenSprinkler irrigation system remotely. Monitor device status, modify watering schedules, and launch programs instantly. Features manual testing, multi-device support, and weather integration.

Highlights
  • Device status monitoring
  • Program modification
  • Instant program launch
  • Manual testing mode
  • Multi-device support
  • Weather and forecast integration
  • Log data visualization
Features
Read full description

The application allows you to automatically detect and control your OpenSprinkler irrigation system(s). OpenSprinkler is an open-source Internet web-based sprinkler timer / controller built upon the Arduino platform. Features of the app include: * Easy to understand device status * Quick program modification * Launch ad-hoc or defined programs instantly * Manual mode for convenient testing * Multi-device support * View visual representation of upcoming scheduled programs * View graphical and tabulated representation of log data * View current weather and forecast status for the device location * Change and disable rain delay * Multiple supported languages (Afrikaans, Amharic, Chinese, Czech, Dutch, French, German, Hebrew, Hungarian, Italian, Mongolian, Norwegian, Polish, Portuguese, Slovak, Slovenian, Spanish and more) This application requires you to own an OpenSprinkler that is properly connected to your network. For more information please visit https://opensprinkler.com. You can control your device from outside the local network with proper port forwarding and use of the WAN IP within the application or by using a VPN. For further assistance please visit the forums: https://forums.opensprinkler.com This is open source software: source code for this application can be found at https://github.com/OpenSprinkler/OpenSprinkler-App

About

TM+ Pro

Remotely monitor and control horticulture automation systems for various growth facilities. Features include a new UI, historical charts, device customization, a logbook, and a community forum for growers to share insights and support.

Highlights
  • Remote access to control systems
  • Historical data charting
  • Customizable device display
  • Plant logbook function
  • Grower community forum
  • Controller sharing
Features
Read full description

TM+ Pro offers you remote access and control of the TrolMaster control systems: Green-X,Tent-X,Hydro-X,Hydro-X Pro,Hydro-X Plus, Aqua-X,Aqua-X Pro,Aqua-X Plus, Carbon-X and Hawkeye. The controllers and control systems provide the ultimate solution for horticulture automation, enabling you to monitor and control every aspect of your growth facilities anywhere, anytime. This new and advanced version is a major upgrade and improvement featuring: New UI: Clear and friendly user experience. Historical Chart: All historical data will be presented in one graph, making it easier to compare the data collected. New devices display customization: You can individually rename and add photos on all devices in the App for better management. New Logbook function: Allows you to track your plant stages, time and date. Log the plant data such as Environment and feeding parameters; plant information and room setup details. New Community page: Follow your favorite growers. Share your logbook and view other grower’s logbooks, a more user-friendly Forum. New Support page: Featuring “Product Learning” “Help” page with FAQ and Q&A. Forum: You can also share, like, comment, and post questions or any thoughts in Community, a place where growers can share ideas and grow together. Sharing controller: Owner can share his controllers with other user accounts. Giving the ability to authorize multiple accounts to access the same controller.

Screenshots

OpenSprinkler3 screens
TM+ Pro4 screens

Verdict

The call

The clearest difference is rating: OpenSprinkler at 3.9 against TM+ Pro's 3.1. OpenSprinkler also leads on review sentiment (65% vs 32%). TM+ Pro's advantage is ratings volume (100 vs 29). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OpenSprinkler holds the better App Store score, 3.9 against 3.1. Both are backed by a comparable volume of ratings — 29 and 100 respectively. Written reviews point the same way: 65% of OpenSprinkler's written reviews are positive against 32% of TM+ Pro's.

UpkeepUpdate frequency

OpenSprinkler ships an update every 2 months, TM+ Pro every 5 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
OpenSprinkler versus TM+ Pro: the parameters behind the verdict, then further details
ParameterOpenSprinklerTM+ Pro
PriceFreeFree
Rating3.9 (29 ratings) — better3.1 (100 ratings)
Positive reviews64.8% of reviews — better32.4% of reviews
Number of ratings29100 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size8 MB105 MB
Age rating4+17+
DeveloperOpenThingsTrolMaster Agro Instruments Co., Limited

Customer experience

OpenSprinkler

All ratings29 ratings
Positive72.4%
Neutral10.3%
Negative17.2%
Written reviews54 reviews
Positive64.8%
Neutral13.0%
Negative22.2%

TM+ Pro

All ratings100 ratings
Positive50.0%
Neutral8.0%
Negative42.0%
Written reviews34 reviews
Positive32.4%
Neutral11.8%
Negative55.9%

User reviews

OpenSprinkler

From 29 App Store ratings

What we love

  • 👍 Reliable and easy to use
  • 💡 Open API for customization
  • 🚀 Works great with hardware
  • 👍 Great companion app
  • 👍 Well-designed interface

Room to improve

  • 🐛 Crashes and fails to connect
  • 🐛 Wi-Fi only interaction is a hinder
  • 🐛 Slow app refresh/updates
  • 🐛 Incompatible with VoiceOver
  • 🐛 Loses settings on updates

TM+ Pro

From 100 App Store ratings

What we love

  • 👍 Simple and works
  • 👍 Prompt and human support
  • 👍 Hardware and sensors are solid
  • 👍 Pretty easy to use
  • 👍 System works great

Room to improve

  • 🐛 App is trash
  • 🐛 Wonky performance
  • 🐛 Subpar accuracy
  • 🐛 Times out all the time
  • 🐛 Not user friendly

Bugs and requests

OpenSprinkler

Reported bugs

20 issues
  • No network connectivity after update
  • Constantly crashes and fails to connect
  • App refreshes and updates super slow
  • Incompatible with VoiceOver, cannot edit/create programs
  • App cannot connect or discover OpenSprinkler 1.8.3 after update
Show 15 more
  • Update deleted OS sites and required new login
  • Loses settings on app updates
  • Won't connect to controller, but works in browser
  • Requires VPN to log in remotely
  • Screen doesn't refresh after changes, requires app restart
  • App crashes when taking a picture to assign to a zone
  • Resume after phone lock causes freeze, requires app restart
  • Weather location always displays as '11, Tottori-ken'
  • Hardware unit loses power randomly and reboots
  • App adds additional programs to the end of the list
  • Clock/GMT feature crashes app and reverts to default
  • Latest update broke connection with early build units (FW 1.8.3)
  • Update crashed OpenSprinkler, router can't find units
  • Firmware update wipes out config
  • Resume on iPhone 7 doesn't work, requires force quit

Requested features

9 requests
  • Add Apple Watch support
  • Indicate % water level with weather forecasts
  • Fix VoiceOver compatibility for editing/creating programs
  • Improve UI, follow iPhone standards
  • Add logging support to the app
Show 4 more
  • Support for older firmware versions (1.8.3)
  • Fix DHCP/static IP bug
  • Add temperature display to home screen
  • Fix resume issue on iPhone

TM+ Pro

Reported bugs

17 issues
  • Version is wrong, cannot use
  • App times out frequently
  • Master controller turns light off/on
  • Historical data timestamps not chronological
  • App won't show devices after update
Show 12 more
  • Schedule page data entry fields are buggy
  • Cannot add software after update
  • App cannot display data
  • App doesn't refresh without re-selecting controller
  • Cannot control devices from app
  • App crashes often
  • App doesn't update with real-time readings
  • History graphs poorly scale data
  • Difficult to scroll zoomed graphs
  • VPD data rounded
  • Takes long for data to refresh
  • Issues with verifying email

Requested features

5 requests
  • Add indication for port status
  • Improve historical data display
  • Allow settings changes through app
  • Faster AVG parameter updates
  • More online info for new units

In-app purchases

None

OpenSprinkler

No in-app purchases

None

TM+ Pro

No in-app purchases

Questions

Is OpenSprinkler free?
OpenSprinkler is free to download, with no in-app purchases.
Is TM+ Pro free?
TM+ Pro is free to download, with no in-app purchases.
Which has better reviews, OpenSprinkler or TM+ Pro?
OpenSprinkler is rated higher. OpenSprinkler averages 3.9 out of 5 from 29 ratings, while TM+ Pro averages 3.1 from 100 ratings.
Do OpenSprinkler or TM+ Pro have ads?
Neither OpenSprinkler nor TM+ Pro shows ads.
Which is updated more often, OpenSprinkler or TM+ Pro?
OpenSprinkler ships an update every 2 months, and TM+ Pro every 5 weeks. Most recently, OpenSprinkler was updated on November 1, 2026 and TM+ Pro on November 3, 2026.

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